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14 Cards in this Set
- Front
- Back
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Fossils
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Remains or traces of
plant and animals and animal activities preserved in rocks |
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Allopatric speciation
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New species arise when some individuals
are geographically isolated |
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Speciation:
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Change in the genetic makeup of
population |
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Gradualism
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slow, continuous changes
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Punctuated Equilibrium:
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New Species
evolve rapidly with long periods of stability |
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Laramide Orogeny
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(L. Cretaceous –
Eocene) – Deformation inland because of shallow angle subduction |
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Valley & Ridge Province
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Uplift & down-cutting streams
– Differential erosion carves out topography |
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Yellowstone National Park
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Caldera formed by eruptive volcanism
Three eruptive cycles |
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Saurischia
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Lizard-hipped
• Pubis extended back |
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Ornithischia
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Bird-hipped
• Pubis extended downward |
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Pluvial Lakes
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Great Salt Lake
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period
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In the new division, the Tertiary Period
has become Paleogene & Neogene Periods |
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Anaerobic
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no oxygen available
• Fermentation - beer, bread |
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Aerobic,
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exist inoxeygen
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